Product details

  • The 48V 5A GaN power supply unit is specifically designed for use with amplifiers and is ideal for providing reliable power to Fosi Audio amplifiers, such as BT20A Pro, TB10D, V3 and ZA3 amplifiers.

  • An amp's excellent performance is inseparable from the blessing of a high-quality power supply. This gallium nitride power supply unit has a power output of 240W, allowing your amps to be fully driven. The overload and over-temperature protection escorts you to enjoy music continuously and stably.

  • With an exquisite body, excellent workmanship and outstanding energy efficiency, the 48V GaN power supply unit will complement Fosi Audio’s high-performance mini amplifiers.
    Input: AC 100-240V
    Output: 48V/5A, 240W
    Compatible Amps: V3, BT20A Pro, TB10D, ZA3
    Total Length: 286cm

FAQs

Please read our FAQs page to find out more.

How to: Choose the right banana plug?
  • Closed Screw Type. All Fosi amplifiers use standard-sized speaker terminals (4mm pins).
  • Easy to wire up and solidly connect to amplifier and passive speaker.
  • If they do not fit, use a little force to tighten the plugs.
  • Fosi Audio Banana Plugs (Copper, Silver/Gold Plated): http://bit.ly/40Djq0U, https://bit.ly/3MkPL8t
  • Please watch tutorial videos: https://youtu.be/6pYhoqDlvNw / https://youtu.be/RGvBgGAwS9k
How to Diagnose Power Supply Failure?
  • The following situations may cause this issue
  • Case 1: The LED on the power supply does not light up; Case 2: Amp/Preamp does not turn on; Case 3: When plugged into the Amp, both light on the amp & power supply start blinking; Case 4: Amp/Preamp make noise; Case 5: Sound shuts off by itself
  • Possible solution
  • Check if the power supply is illuminated when plugged into AC by itself.

    Plug power supply into a different socket.

    Test the adapter with a meter.

    Try a different power supply (within a range of DC input).

    Test the included power supply on other electrical equipment.

    Please watch the tutorial video by clicking on the link provided. https://youtu.be/yCjygS03zTE
What are the differences in power outputs using the 32V and 48V power supplies?
  • Using a more powerful power supply can help prevent distortion.
  • Enables amplifier to drive larger, more powerful, or higher-impedance speakers.
What is a GaN?
  • The GaN supply has a power output of 240W.
  • Offers overload and over-temperature protection.
  • The 48V 5A GaN power supply is also available on Amazon.

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